Products > Test Equipment
Scope Current Probe Deskew Fixture PCB Project
Thebrakshow:
Thanks for the offer, however, I was planning on making my own with some tweaks (to accommodate parts I already have in my lab). I was more so curious about the performance. Mainly curious if you ultimately went with the GaN (EPC2014C) or mosfet (BSS316N) or were both acceptable? What kind of rise times were you getting? When you use the fixture are you happy with the 555 timer as the clock source at ~7.6KHz? Or do you find yourself using an external clock source?
Thanks for your input!
As always you guys (entire EEVBLOG community ) rock 🤟!
-Brak
blurpy:
@Ribster
Where do you hook up the regular oscilloscope probe on your design? Or is yours not made for the same purpose as steve1515s design?
Thebrakshow:
I finally got around to building one of these fixtures. I just recreated Ribsters design / layout. The main modification I made was that I added footprints for both BSS316N and EPC2014C FETS. I've only tested out the BSS316N so far with pretty good results.
@blurpy I know this is an old post but if you look at Ribster's design it, has test point locations which you can use to probe the voltage with the tip and barrel method. I've attached a photo that should clear it up.
blurpy:
--- Quote from: Thebrakshow on March 11, 2022, 02:11:22 am ---@blurpy I know this is an old post but if you look at Ribster's design it, has test point locations which you can use to probe the voltage with the tip and barrel method. I've attached a photo that should clear it up.
--- End quote ---
Thank you, that explains it :-+
Ribster:
--- Quote from: blurpy on September 05, 2021, 12:02:04 pm ---@Ribster
Where do you hook up the regular oscilloscope probe on your design? Or is yours not made for the same purpose as steve1515s design?
--- End quote ---
I've added 2 points that can be soldered on.
So you can attach it there.
I've finished the product including 3d printed case.
Only 1 is left at the shop, but ordered more PCB's for a new batch.
So if you want one, head over there :)
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